i40e_fdir(9)

🎀 i40e_fdir(9) — Kernel API Manual 🎀

okay so bestie, welcome to the i40e_fdir(9) page. This is the Kernel API Manual entry, and it’s literally here to explain generating a Flow Director descriptor based on fdata. Very niche, very kernel, very iconic. ✨

💖 NAME 💖

i40e_fdir — Generate a Flow Director descriptor based on fdata 🦋

🌈 SYNOPSIS 🌈

Here’s the signature exactly as it appears, bestie — do not come for me about the line break:

void i40e_fdir (struct i40e_ring *tx_ring , struct i40e_fdir_filter
*fdata , bool add );

✨ ARGUMENTS ✨

• tx_ring — the Tx ring to send buffer on. That’s the whole assignment, okay? 💅
• fdata — Flow director filter data. The main character of this function, honestly. 👑
• add — tells you whether we’re adding a rule or deleting one. Binary queen behavior. 🎀

💜 SEE ALSO 💜

Kernel file: ./drivers/net/ethernet/intel/i40e/i40e_txrx.c

• i40e_program_fdir_filter(9), i40e_create_dummy_packet(9), i40e_create_dummy_udp_packet(9), i40e_create_dummy_tcp_packet(9), i40e_create_dummy_sctp_packet(9), i40e_prepare_fdir_filter(9), i40e_change_filter_num(9)
• i40e_add_del_fdir_udp(9), i40e_add_del_fdir_tcp(9), i40e_add_del_fdir_sctp(9), i40e_add_del_fdir_ip(9), i40e_add_del_fdir(9), i40e_fd_handle_status(9)
• i40e_unmap_and_free_tx_resource(9), i40e_clean_tx_ring(9), i40e_free_tx_resources(9), i40e_get_tx_pending(9)
• i40e_detect_recover_hung(9), i40e_clean_tx_irq(9), i40e_enable_wb_on_itr(9), i40e_force_wb(9), i40e_update_itr(9)
• i40e_reuse_rx_page(9), i40e_clean_programming_status(9), i40e_setup_tx_descriptors(9), i40e_clean_rx_ring(9)
• i40e_free_rx_resources(9), i40e_setup_rx_descriptors(9), i40e_release_rx_desc(9), i40e_alloc_mapped_page(9)
• i40e_alloc_rx_buffers(9), i40e_rx_checksum(9), i40e_rx_hash(9), i40e_process_skb_fields(9), i40e_cleanup_headers(9)
• i40e_can_reuse_rx_page(9), i40e_rx_buffer_flip(9), i40e_get_rx_buffer(9), i40e_put_rx_buffer(9), i40e_process_rx_buffs(9)
• i40e_construct_skb(9), i40e_build_skb(9), i40e_is_non_eop(9), i40e_run_xdp(9), i40e_xdp_ring_update_tail(9), i40e_update_rx_stats(9)
• i40e_finalize_xdp_rx(9), i40e_inc_ntp(9), i40e_add_xdp_frag(9), i40e_consume_xdp_buff(9), i40e_clean_rx_irq(9), i40e_buildreg_itr(9)
• i40e_update_enable_itr(9), i40e_napi_poll(9), i40e_atr(9), i40e_tx_prepare_vlan_flags(9), i40e_tso(9), i40e_tsyn(9)
• i40e_tx_enable_csum(9), i40e_create_tx_ctx(9), __i40e_maybe_stop_tx(9), __i40e_chk_linearize(9), i40e_tx_map(9), i40e_xmit_xdp_ring(9)
• i40e_xmit_frame_ring(9), i40e_lan_xmit_frame(9), i40e_xdp_xmit(9)

Cute little sign-off, bestie: this page is from ./drivers/net/ethernet/intel/i40e, dated October 2026, and it’s the i40e_fdir(9) manual. Byeee 💋✨